PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/10-10:43:10
G01     124.7          13.5                3.1 +/-    1.90       8.1 +/-    1.90  0.290 / 0.450
G07     66.3           67.4                3.1 +/-    0.24       3.3 +/-    0.24  0.350 / 0.510
G08     47.9           35.6                2.2 +/-    0.91       3.5 +/-    0.91  0.030 / 0.030
G09     176.0          31.2                3.1 +/-    1.22       5.4 +/-    1.22  0.040 / 0.020
G11     112.9          35.6                4.8 +/-    1.15       7.6 +/-    1.15  0.030 / 0.030
G13     321.2          11.8               -1.3 +/-   10.83      -3.6 +/-   10.83  0.030 / 0.030
G17     199.6          19.9                3.7 +/-    2.37       8.1 +/-    2.37  0.060 / 0.060
G28     281.3          54.5                1.5 +/-    2.74       1.8 +/-    2.74  0.070 / 0.080
G30     334.4          61.3                1.4 +/-    0.45       1.6 +/-    0.45  0.170 / 0.160